Had a project where I was developing on both Windows Subsystem for Linux & a Mac. On the windows box, make sure you setup chromedriver and set the port to 9515 (should be the default)

capybara_js_driver_setup.rb

module CapybaraJsDriverSetup
  module_function
  def is_running_on_windows_subsystem_for_linux?
    if which('cmd.exe')
      os_version = `cmd.exe /c "systeminfo" | grep "^OS Version"`
      !os_version.chomp.empty?
    end
  end

  def create_wsl_driver
    Capybara.register_driver :windows_chrome do |app|
      capabilities = Selenium::WebDriver::Remote::Capabilities.chrome(
        'goog:chromeOptions': {
          args: %w(no-sandbox headless disable-gpu),
        },
      )

      Capybara::Selenium::Driver.new(
        app,
        browser: :chrome,
        url: 'http://localhost:9515',
        desired_capabilities: capabilities,
      )
    end
  end

  def which(cmd)
    exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : ['']
    ENV['PATH'].split(File::PATH_SEPARATOR).each do |path|
      exts.each do |extension|
        exe = File.join(path, "#{cmd}#{extension}")
        return exe if File.executable?(exe) && !File.directory?(exe)
      end
    end
  end

  def setup_driver
    driver = if is_running_on_windows_subsystem_for_linux?
      require 'selenium-webdriver'
      create_wsl_driver

      :windows_chrome
    else
      require 'capybara/apparition'

      :apparition
    end

    Capybara.javascript_driver = driver
  end
end

CapybaraJsDriverSetup.setup_driver